Pre- Calculus

21,880 results, page 70

  1. Calculus

    find the limit of ((sqrt(x+4))-2)/x as x approaches 0.
  2. calculus

    consider the function f(x)=2x^2 +1. its tangent line at x=2 goes through the points (2,y1) and (-1,y2) where y1=?, y2=?
  3. Calculus

    Using a linear approximation or differentials, approximate:(26.98)^(3/4) thank you for your help!
  4. Calculus

    2) If f(x)=∫t^2dt on the interval from 4 to x^3 then f′(x)=?
  5. Calculus

    Find dy/dx by implicit differentiation: x^2-2xy+y^3 = c Thank you!
  6. Calculus

    same as my question below please help me post your answer on here if you have one on these forms of course h t t p : / / w w w . p h y s i c s f o r u m s . c o m / s h o w t h r e a d . p h p ? t = 4 2 1 7 6 3
  7. calculus

    find the domain of function f(x)= (5x + 4)/(x^2 + 3x + 2) is the answer.. x can't be -2 or -1?
  8. calculus

    I am having a problem with solving this Given the function f described by f(x)=x+3, find each of the following: f(0) f(-13) f(-12) f(1) f(4+8) can you help me please?
  9. calculus

    Find the limit as x approaches -4 of 4-lxl/4+x
  10. calculus

    What is the limit of this function as x approaches infinity? 2^x + x^3 / x^2 + 3^x
  11. Calculus

    Find the points of discontinuity. f(x) = { 16/x^2 if x ≥ 2 { 3x - 2 if x < 2
  12. calculus

    find the derivative of (x^2+1) 3rd root of x^2+2
  13. Calculus

    Determine the limit lim x->0 1-cos^2(3x)/x^2
  14. Calculus

    Reverse the order of the double integral (y+1) dx dy, where -1<= y <= 4 and y - 4 <= x <= 4y-y^2
  15. calculus

    Please help me find the derivative of f(x) = x^(2^x) I got to ln(f(x)) = 2^x(lnx) but now I'm stuck..
  16. Calculus

    Find one sided limit lim x->2+ 1/(1+e^(1/x-2))
  17. Calculus

    Determine the following limits if it exists. a. lim x-->5 (4x/x-5)
  18. calculus

    Find the derivative of the function. y = cos^4(¹t - 8)
  19. Calculus

    9)Evaluate the indefinite integral. ∫x^8e^(x^9)dx
  20. Calculus

    Find f(x)' of f(x)=x^x^x I logged both sides to get ln y = x^x ln x But I am not sure what step to do after that.
  21. calculus

    Let P= (V^2)R / (R+r)^2 Calculate dP/dr, assuming that r is variable and R is constant.
  22. Calculus

    Find limit as x approaches 5 (x^2-3x-10)/(x-5) A. 2 B. DNE C. 0 D. 7 E. None of these
  23. Calculus

    If f(x) = {x^2+3x-1, x<=2 and -3bx+3, x<2 , find the value of b in order for f to be continuous
  24. Calculus

    If f(x) = {x^2+3x-1, x<=2 and -3bx+3, x<2 , find the value of b in order for f to be continuous
  25. calculus

    limit of sin x / 2x squared - x as x approaches 0
  26. Calculus

    Find f'(x) for f(x)=(2x^2+5)^7 A. 7(4x)^6 B. 7(4x)^7 C. 28x(2x^2+5)^7 D. 7(2x^2+5)^6 E. None of these Would it be none of these because of the 4x in the chain rule?
  27. calculus

    sqrt(x^2 - 9) / x I need to solve this using the definition of a derivative [f(a+h) - f(a)]/h I can't seem to get it :\
  28. Calculus

    Evaluate the integral from 2/sqrt2 to 4; 1/(t^3 sqrt(t^2-4))?
  29. Calculus

    Find the derivative: f(x)=1/cubed root(3-x^3) A. -1/3(3-x^3)^4/3 B. x^2/(3-x^3)^4/3 C. -x^2/(3-x^3)^2/3 D. -x^2/(3-x^3)^4/3 E. None of these
  30. calculus

    Find the anti-derivative of x^4... Isn't it 4x^3+c? Please help... Thanks!
  31. Calculus

    Find the value of a≥0 that maximizes the integral from 0 to a of (4-x²)dx. Thank you!
  32. AP Calculus

    Find f'(x): f(x)=(x^2-3x)/x^2 A. 2x-3/x^2 B. 2x-3/2x C. 1-(3/x) D. 3/x^2 E. None of these I get confused on the simplifying part.
  33. Calculus

    2) If f(x)=∫t^2dt not he integral from 4 to x^3 then f′(x)=?
  34. calculus

    the value of f(4) is negative, but the function is increasing rapidly at x=4
  35. Calculus

    find the area of the region. 2y=4sqrtx , y=3 and 2y+2x=6 ?
  36. Calculus

    11) Find the following indefinite integrals. ∫x/(x+9)^(1/2)dx
  37. Calculus (derivatives)

    find the slopes at the indicated points y = 3 + 5x - 3x^3 (0,3), (1/2, 41/8), (2,-11)
  38. Calculus

    What does this equation mean? X = Cos (T) * Phi ^ ((2 / Pi) * T) Y = Sin (T) * P
  39. Calculus

    use the intermediate value theorem to determine whether there is a zero f(x) = -3^3 - 6x^2 + 10x + 9 ; [-1,0]
  40. Calculus 1

    Given f(x)= 3e^(1-x^2)*ln(x), find the equation of the tangent line at x = 1.
  41. calculus

    What conditions must be satisfied by vectors u and v for this to be true? |u + v| >|u - v|
  42. Calculus

    Given vectors u= (t, 2t, 3) and v=(2t, 5t, -1). For what values of t a) are u and v parallel? b) are u and v perpendicular?
  43. Calculus

    Find the volume of the tetrahedron with verticies (1,1,2), (3,-4,6), (-7,0,-1) and (-1,5,8).
  44. CALCULUS

    Show that the quadrilateral with verticies at P(0,2,5), Q(1,6,2), R(7,4,2), and S(6,0,5) is a parallelogram.
  45. Calculus

    Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].
  46. calculus

    Need help asap! what is the limit as x approaches 0 of -x/tan(3x) ?
  47. Calculus

    Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].
  48. calculus

    9) Find all critical numbers of the function f(t)=9t^2/3+t^5/3
  49. calculus

    Given vectors u= (t, 2t, 3) and v=(2t, 5t, -1). For what values of t a) are u and v parallel? b) are u and v perpendicular?
  50. Calculus

    Suppose g (x) is increasing and concave up everywhere and g (A) = 9, g '(A) = 17, h = 0.01 estimate g(A-h)
  51. Calculus

    Find f''(1/2) using f(x) = ln(1-x). f'(x) = 1/(1-x) * -1 = -1/(1-x) so then using quotient rule: f''(x) = ((-1*-1) - ((1-x)(0))) / (1-x)^2 f''(1/2) = 1/(1-(1/2))^(2) = 4 Is this correct?
  52. Calculus

    find the point on the plane 5x+4y+z=12 that is nearest to (2,0,1)
  53. Calculus

    Find the slope of the curve f(x)=1/(x^2+3). My answer: (-2x)/(x^2+3)^2
  54. calculus

    how would you represent the area outside given y= 4cos(2theta) but outside y=4 ?
  55. calculus

    find the arc length from (x1,y2) to (x2,y2) on the graph F(x)=mx+b
  56. Calculus

    Calculate the integral of: ((x^2)tan(x))/(1+((cos(x))^4))
  57. Calculus

    Calculate the slope of the graph of f(x)=4-x^2 if x<1 and 2x+1 if x>1 at each of the following points: a.P(-1,3) b.P(2,5)
  58. Calculus

    Determine the following limits if it exists. a. lim x-->5 (4x/x-5)
  59. Calculus

    y=x^2-11x+30 For what values of x is y greater than or equal to 0?
  60. Calculus

    Find the area between the x-axis and the graph y = x^2 – x + 1 from x = 0 to x = 3.
  61. Calculus I

    Find numbers a and b such that: lim (sqrt(ax+b)-9)/x =1 x->0
  62. calculus

    find the derivative with respect to x: sqrt(x+s) = (1/x) + (1/s)
  63. Business Calculus/Algebra Review

    M-3 M+5 is less than or equal to 0
  64. Calculus

    Find the interval on which f(x)=xe^-x is increasing. I got (1,infinity)..
  65. Calculus

    find the critical numbers of the function: h(p)=p-1/p^2+4
  66. Calculus

    Use the product rule to find the derivative of the following. k(t)=(t^2-4)^2 k'(t)=
  67. Calculus

    Find the interval on which f(x)=xe^-x is increasing. I got (1,infinity)..
  68. calculus

    The function f(x) = (7 x+9)e^{-2 x} has one critical number. Find it.
  69. Calculus (please help)

    Evaluate the indefinite integral: INT dx/(64+x^2)^2 Please help with this one.
  70. Calculus

    The equation of the tangent line to f(x) = \sqrt{x} at x = 64 is y =
  71. Calculus

    Evaluate the indefinite integral: INT dx/(64+x^2)^2
  72. calculus

    3) f(x)=x^(2)/6x^(2)+4. List the x values of the inflection points of f.
  73. Calculus

    f(x)= 6ln(2x+7ln(x)) I need to find the first derivative.
  74. calculus

    find cosx and sinx if tanx = 4
  75. calculus

    if f(x)=ln(x^3 +1) find f'(3), correct to 2 decimal places
  76. calculus

    Find the Maclaurin series of xcos(x^2).
  77. Calculus

    Find arccos (sqrt2/2). Can this be pi/4 and 7pi/4?
  78. Calculus

    How do you find the first and second derivative of the following function? P(t)=20/(1+3e^-0.02t)
  79. Calculus 1

    find an expression for a cubic function f if f(1)=6 and f(-1)=f(0)=f(2)=0
  80. Calculus BC

    s(t)=t^3 - 5/2 t^2 - 2t + 1 for all t>=0, 1. what was the displacement on 0<= t <= 4 2. at t =.5 is the function slowing down or speeding up?
  81. calculus

    Find d2y/dx2 in terms of x and y. y5 = x6
  82. Calculus

    Using Descartes' Rule of Signs, solve: f(x)=x^3+x^2-x+1.
  83. calculus

    Hi i need help for calcul with a Moivre's theorem: ( 1/2 ( -1 - i√3 )) ^3 thanks for your help
  84. calculus

    Find the derivative. Could you please show me the steps? y = ãx(5-ãx)
  85. calculus

    If f(1) > 0 and f(3) < 0, then there exists a number c between 1 and 3 such that f(c) = 0. Is this true or false? Please and thank you
  86. calculus

    discuss the curves under the headings given in this section y=x/x-1
  87. Calculus 2

    use the method of equating coefficients. integral of (x^3+5x^2+12)/((x^2)(x^2+4)) dx
  88. Calculus

    Find the derivative of f(x) = ln(48e3x − 11)
  89. Calculus

    Find the derivative of f(x) = ln(48e^3x − 11)
  90. calculus

    find the derivative of y=sqrt of arctan x
  91. Calculus (Help please)

    Find all the critical numbers for the following function. F(x) = (16 - x^2)^(3/5)
  92. Calculus

    Find all the relative extrema of f(x) = x = x3 – 3x2 + 4.
  93. calculus

    find the derivative of f(x)=cot(3x)csc^2(3x)
  94. calculus

    if f(x)=ln(x^3 +1) find f '(3), correct to 2 decimal places
  95. Calculus

    write the equation of line tangent to f(x)=(1/3x^3)-x^2+x-1 when x=1
  96. Calculus

    For the function g(x) = xe power x, there is inflection point at?
  97. calculus help

    Evaluate!!!! integral -10 to 10 ((2e^x)/(sinhx+coshx))dx Thanks!
  98. Calculus AB

    What are the six trigonometric functions of 2010 times pi?
  99. math-calculus

    (4)/(x-3)+(2)/(3-x) (4)/(x-3) + (2)/(-1)(-3+x) i factor out a negative 1 from 3-x. 4/(x-3)+ 2/(x-3) 6/x-3 it suppose to be 2/x-3 how i get that?
  100. Calculus

    Suppose that f(t)=Qoa^1=Qo(1+r)^t with f(4)=72.2 and f(10)=176.7. Find what a is and what r is.
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